Canvas blank



FIG. 1 is a rear perspective view of the canvas blank showing my new design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a right-side elevation view thereof.

FIG. 5 is a left-side elevation view thereof.

FIG. 6 is a top plan view thereof.

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a plan view thereof in an unfolded condition.

The features shown in broken lines represent bend lines and form no part of the claimed design. The broken away symbols in the drawings indicate that the appearance of any portion of the article between the break lines forms no part of the claimed design. 

CLAIM I claim the ornamental design for a canvas blank, as shown and described. 